The High Performance Switch; Supervisor Cards - IBM RS/6000 SP Problem Determination Manual

This soft copy for use by IBM employees only.
in future releases, the SP will be able to send heartbeat packages over any
existing network that connects the nodes and the CW.
Figure 2. Supervisor Cards
The Frame contains redundant power supplies; if one power supply fails, another
takes over. The Frame is also designed for concurrent maintenance; each node
can be removed and repaired without interrupting operations on the other nodes.

1.1.3 The High Performance Switch

The High Performance Switch is one of the most unique pieces of hardware and
software developed for the RS/6000 SP. The hardware portion of the switch
provides a low latency and high bandwidth of communication between nodes.
Each node is connected to the High Performance Switch by the Switch Adapter,
as shown in Figure 3 on page 4.
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Chapter 1. O v e r v i e w